199 Dominican Fossils — Maury 35 



Genus Conus Linne 



Conus haytensis Sowerby 

 Plate 5, Figure i 



Conus Haytensis Sowerby, Quart. Jour. Geol. Soc. London, vol. 6, p. 



44, 1849. 

 Cofius Haitensis Gabb ( in part), Trans. Amer. Phil. Soc, vol. 15, p. 



231, 1873. 

 Conus Haitensis Guppy, Quart. Jour. Geol. Soc. London, vol. 32, p. 



p. 528, 1876. 

 Conus Haytensis Brown and Pilsbry, Proc. Acad. Nat. Sci., Phila., p. 



341, 1911. 



Shell very large, heavy, spire slightly elevated, spirally stri- 

 ate, sub-coronate; last whorl with a sub-angulate shoulder and 

 striate base; canal slightly reflexed. A large shell measures 

 110 x58 mm. This species is akin to C. molts. It is found at 

 Bowden and Gatun. 



Localities. — (Exp'd '16) Bluff 1, Cercado de Mao; Zone E, 

 Rio Gurabo at Los Ouemados; Zone H, Rio Cano at Caimito. 



Conns haytensis var. gurabensis, n. var. 

 Plate 4, Figure 9 



Shell large, solid; whorls about ten, the first three smooth, 

 the two and a half following sculptured with many vertical, sub- 

 equal riblets, interrupted by six small varices. The riblets and 

 varices are crossed by close-set, fine revolving threads forming a 

 somewhat cancellated ornamentation, quite different from the cor- 

 onated spire of typical haytensis. The riblets then become obso- 

 lete, and the following three and a half whorls are ornamented 

 only with the fine, delicate, sharply defined spirals. These de- 

 crease from fifteen or more and tend to become obsolete, so that 

 the summit of the last whorl retains traces of only about five. 

 Greatest diameter of shell 47 mm. 



Locality. — (Exp'd '16) Zone B, Rio Gurabo at L,os Que- 

 mados. 



